WP 5839

Updated the version of dataviewer to dv-3.0, which addresses CDS bugzilla 832, fixing the previously non-functional "-r restorefile" command line option.  Users may now specify a previously saved XML file on the dataviewer command line.  

As an example the command 

dataviewer -r Initial_Alignment.xml 

starts dataviewer, and reads the file Initial_Alignment.xml after connecting with the NDS server.  No search path is used for the file, so either the xml file must reside in the current directory from which dataviewer is started, or a relative or full path must be specified for the file.